Water-heater.



' Patented Aug. 13, 1918.

' a true axis of the coil.

HENRY W. OZDO, OF JERSEY CITY, NEW JERSEY, ASSIGNOR '10 WILLIAM M. CRANECOMPANY, .A CORPORATION OF NEW YORK.

WATER-HEATER.

Specification of Letters Patent. Patentgd Aug, 13, 1918.

Application filed August 30, 1912. Serial No. 717,922.

To all whom-it may concern:

Be it known that-I, HENRY W. ODowo, a citizen of the United States, anda resident of Jersey City, Hudson county, State of New Jersey, haveinvented certain new and useful" Improvements in WVater-Heaters,of-which the following is a specification.

This invention relates to water heaters, and more particularly to waterheaters fpr household use. Objects of the invention are to provide aheater of the character referred to which shall be simple and durable inconstruction and eficient and economical in operation: and whose partsshall be simple, compactly and conveniently arranged and adapted to bereadily taken apart and reassembled. These and other objects of theinvention will be in part obvious and in part more fully explained inthe'following description.

The invention consists in the novel parts, improvements, combinations,and features of construction hereinshown and described.

In the' accompanying drawings, which are referred to herein and form apart/here- 'of, is illustrated an embodiment of the in- Fig. 3 is a planview of a preferred form' of burner used in said embodiment.

Referring now in detail to the drawings, the embodiment of the inventionillustrated comprises a heating coil 5 joined by unions 6 and 7 to theinlet pipe 9 and outlet pipe 10, respectively, of the water s stem, asshownsaid inlet and outlet pipes being on Surrounding said heating coilis a casing 12 having a top 13 from which leads a flue l lfor the escapeof the heated products of combustion.

Suitable means are provided for heating -the water as it passes throughthe coil 5, the

same, preferably and as shown, comprising an annular burner 16 which hasa break in its periphery, see Fig. 3, so that the burner may be readilyremoved upon lifting the casing 12 or opening the doorthereof withouthlndrance from the water supply pipe.

vSaid burner is connected to a fuel supply by a depending mixing tube18, a nipple 19 of the burner resting upon a flange 20 of the mixingtube, said flange 20 resting in turn upon a downwardly flanged plate 22which is secured to the water inlet and which burner project inwardly,and throughout the upper surface of the burner and extensions aresuitably disposed upwardly directed perforations 26.- The extensions orbranches 25 terminate short of the coils center, prefergirrounding theheat zone or lower part of the casing 12, is a hollow belt 28, formed byan outer plate spaced apart from the said casing and joined thereto atthe edges, so as to provide a pocket for secondary air to be supplied tothe burner 16. It will be obvious that the belt 7 28 also conserves theheat in the said zpn and around the end. of the coil therein.referably'in the lower part of the belt 28 are formed a plurality of airinlets 29 which communicate with similar inlets 30 formed in the innercasing 12 and preferably on alevel with the flame from the burner 16. Itwill be seen that this relative disposition of the saidair inlets in theouter belt and inner casing is most advantageous for supplyingatmospheric air to the burner 16 in order to maintain combustion. Toafford a further supply of air so as to maintain combustion ports areformed in the plate 22 through which ports the air enters and passesthrough and around the burner'to the place of combustion.

In order that the heated products of combustion may be utilized to thebest advantage in their passage through the casing '12 a tubular baflleor deflector 32 havinga coneplurality of radial extensions 25 of thenection, as shown.

shaped lower. end is arranged inside the upper rings of the heatingcoil. 5 and, as shown, has a flanged top 33 resting upon a centrallyapertured diaphragm 34, extending across the interior of the casing 12,over the upper end-of the said coil 5. The deflector 32 fills theaperture in the diaphragm 34 and extends downwardly therefrom toapproximately the level of the belt 28 aforementioned, that is, down toa point nearly in line with the upper edge of the said belt. It will beperceived that this deflector turns the heat currents from the zone ofthe burner 16 toward the internal surface'of the surroundin casing andforces them across the spirals 0 the coil above the said zone. At thesame time the diaphragm operates to repel the ascending currentsdownward against the entire coil, and thus assists in maintaining thelatter in a permanently hot atmosphere.

The diaphragm 34 aforesaid is placed at some distance from the topof thecasing 12, and formsin the upper part of the latter a separate chamber,through which the outlet pipe 10 reaches the coil 5, by a suitable con-This discharge connection of the coil 5, it will be observed, is centralrelatively to the axis of the deflector 32, which latter transmits tothe said chamher the products of combustion that accumulate and press upagainst the underside of the diaphragm. Suitable vents in the sides ofthe deflector 32, and registering perforations 37 in the top 33 thereof,enable the products of combustion thus to be transmitted to the chamber,inside of which they spread around the said discharge connection,

imparting thereto such heat as they may still 'retain after traversingthe diaphragm.

Finally, the products of combustion are allowed to escape through a flue14, communieating with a suitable opening in the top of the casing 12,at or near its periphery.

Besides the said vents, which are designated by the reference numeral3%, the tubular deflector 32 is also provided with a suitable opening toreceive and let pass the curved portion of the outgoing end 5* of thecoil 5. The opening may be in the form of a U-shaped notch or slot39",in the upper end of the deflector, as indicated by dotted. lines in Fig.2. The end 5 of the coil is embraced by the before mentioned flanged top33 of the deflector, and with the union 7 forms the discharge connectionabove described, which leads into the outlet pipe 10.

It will be seen that a water heater constructed in accordance with. thisinvention carries out the objects of the invention as hereinbefore setforth and also possesses other advantages which will be apparent-tothose skilled in the art.

The invention in its broader aspects is nevaaee not limited to theprecise construction shown from said diaphragm with a passage leadingthe products of combustion from said element into said chamber.

2 A. water heater including in combination a casing, a coil therein, aheating element below said coil, a diaphra above the latter forming aseparate chamber between the upper end of the coil and the top of saidcasing, an outlet pipe leading ed the casing top, a connection betweensaid upper end of the coil and said pipe passing through said chamber,and means conveying heat from said element into said chamber centrallyof said diaphragm and around said connection.

3. A water heater including in combination a vertical coil, a casingtherefor, a heating member beneath said coil in the lower part ofsaid-casing, a diaphragm above the coil separating it by an interveningspace from the casing top, the discharge end of the coil leading fromsaid diaphragm to said top across said space, an apertured elementsecured to said diaphragm conveying heat from said heating member aroundsaid discharge end, and means affording an exit to the products ofcombustion passing through said element.

4. A water heater including in comb-ination a vertically disposed coil,a casing inclosing the same, a burner beneath said coil, a diaphragmabove the latter forming a separate chamber between it and the top ofsaid casing, the outlet end of the coil rising to the upper part of saidchamber and casing top past said diaphragm, a tubular heat deflector insaid diaphragm having an egress opening adjacent to said outlet end, anda flue serving to convey the products of com Eustion from said burnerout of said cham- 5. A water heater including in combination a verticalcoil, a casing therefor, inlet and outlet pipes for said coil axiallyprojecting from the opposite ends of said casing, a burner positioned inthe lower part of the casing so as to throw heat around the inlet pipe,a diaphragm above the coil completely separating it by an interveningspace from the casing top, a tubular deflector in the center of saiddiaphragm leading the prod- In testimony whereof, I have signed my uctsof combustion from said burner against I name to this specification,in-the presence of the outlet pipe centrally of the space between twosubscribing witnesses.

the casing top and the diaphragm, and a flue HENRY W. ODOWD. having aperipheral communication with Witnesses: said space at a point remotefrom the outlet EUGENE M. CHAPMAN,

pipe. JOSEPH H. MULFORD, Jr.

